LATE 80'S MODELS WILL WORK AND WHAT IS DIFFERENCE BETWEEN 2.8 AND 3.1 THANKS

 

I have an old GM V6 racer's manual that sites no differences between 86-92 60 degree Chevy V6 engines if equipped with TBI or MPFI in Camaros, Firebirds and S-10/S-15 pickups.

Stay away from the carbureted cylinder heads and camshafts.

Hope this helps!

 

thanks iwas told there is a difference but you probably right on the heads iwas told the diff. is 3.1 is stroked a liitle more or pistons not the same

 

as long as u get heads from a 2.8/3.1/3.4 engine that is fuel injected they are all the same.
any heads from a non injected motor have smaller valves 85 and prior i believe
all the iron heads from 86-94or95 are the same no matter what engine they come from i.e 2.8/3.1/3.4 they all have the same casting number

 

i also heard that 3.1 90 model fbird came with double valve springs. doews that mean one spring with a damper spring inside?